Container



July 27, 1937.

H. T. SCOTT CONTAINER Filed March 24, 1932 2 Sheets-Sheet l July 27, 1937. H, T, SCOTT 2,037,940

CONTAINER Filed March 24, 1932 2 Sheets-Sheet 2 /Ifw/ /5 /yg//r/ wmf ln/vento@ T @f MVM 1o the invention;- f

Fig. 2 is an end elevation of the closed con- Patented tJuly 427, 1931 ooN'ramEn Henry 'itl scott, Toledo, join,

-alsiznor to The American Paper Bottle Company, 'l'oledo, Ohio,

a corporation -of Ollio Appiieaaon Maren 24, rss2, No. eoo,ss

a claims. (o1. zzo-3.1)

This invention`relates to containers and cio- 'sures therefor.

This 'invention has utility Awhen incorporated in paper; cardboard or iiberboard types o f boxes` or cartons, .especially of the rectangular tubular form for sett-ing up, togetherwith features for the closure of the lled or charged container. l

inwardly folded;

Fig. 'I isan enlarged section 'on the line Referring to the drawings:

Figi is a view 'of the container'ex'terior si'de'of incorporating an embodiment of .a' scored blank tainer formed from the blank of Fig. 1; e

Fig. 3 is side elevation of the container of Fig. 2;A Fig. 4 isa section, on an enlargedscale, on the Fig. 5 isg'a section longitudinally thru' the closure rib with the tuck-in nap out;

Fig. 6 is a fragmentary bottom plan 'of the container tube with but one' minor bottom flap VII-VH. Fig. 1';

Fig; 8 is an enlarged section o'fa carton closure corner folded with thes'core impressed line out- Fig. 9 is an enlarged section of a carton closure corner folded with the sobre impressed line inward; and

Fig; 10 is'a view of the self spacing ofthe blanks'in flat tubular form.

There is shown a scored blank. Preferably scoring Iris not perforation, but such a marking 2, 4, have minor inner 3, 5,. provide two-ply reinforcement for the sec-4 as may be effected by a' dull blade for depressing a groove 28 on one side and rib 29 opposite thereto' to initiate a line for ready folding: This end is 1 attained most effectively when the folding 4is with the groove 28 inward to be crowded a minimum. This leaves the rib 29 outside (Fig. 9) to. be slightly stretched or taut with less danger of the plies 'ofthe material to open the closure corner.

Such scoring I defines tubel sides 2, 3', 4, 5: (Fig.

1), with flap S from be assembled with the free edge of blank up into a tube.

the latter to bottom naps 1, 8, foldable toward each other-toapproximate abutting relation at their free ends. Major bottom-forming -aps 9, IIL-respectively from the opposing sides 'tional bottom' 1, 8, in completing a three-fply end or closed bottom for the container, assembled by anadhesive 30, (Fig, 6). In practice glue is used.

nids. this tube with but coated with. a leak-proong substance 3 I such as the side 2.

*operations of opening ,up,

u'p (Fig.8) to invitev leakage problems, and is of especial importance at the side 2 in seaming the The opposing tube sides.

When the finished article`is to be used for' liqone open end may be parafn (Fig. 4)

Beyond the extent of the tube sides proper,

"closure sections may be collapsed tojseal the container. The seamilap 6 (Fig. 1) has sections II, I2.' I3. The side 5 has sections I4.. I5, I6. Theside 3, has sectionsl I1, I8. The sides 2, 4, each have an isosceles triangular section I9,'a pairof' right triangular sections 20, 2I, anda pair of trapezoid sections 22, 23. With the byvglue 32,A in assembly with the side 2, there-ls tube continuity to include the triangular and -trapezoid sections by thescoring assembly and the seam flap sections II, I2, I3, adherent to the fore the bottom isassembled the at tubes may be supplied in ajmagazine for such bottom forming, land coating. The ribs 29 so space (Fig. 10) the fiat tubes in the magazine stack that ready separafiap 6 Sealed.

free y.edge region of the sections I9, 2l, 23, from tion is had for withdrawing separately and setting up'. To open up the flat tube by edge pressure at the' joint between the' sides 2, 3, any tendency for cross locking or binding between the bottom sections is eliminated by cutout 33.

There is thus clearanc'ejor ready setting up of the flat tube into the` open ended square duct.

The three triangular sections I9, 20, 2 I, are' a set, forming a parallelogram section of similarity to the sections I4, I1.

When there has been leak-proofing, it is desirable to relocate the scorings before final closing. To effect closing of the charged container, the sections I4, I1, are movedV toward each other as the apices ofthe triangles I9 are folded inwardly.` The trapezoid sections 22, 23, fold one on the other to meet medially-of the section I5 for tuck-in section I6 to be thrust inside the section I8 toward the section I1. 'Then embracing section I8 may fold over to abut the outer side of the section. I5. Stitching or wire staple 424 thru such assemblyvin the. formed rib may thus complete closing. Warming of the leakproofing forV softening .or fusing may occur in such timing that whenstitched or finally sealed there may be recongealing on the folded lines. Location of the seam flap in the triangle and minor bottom ap regions for fold-overassembly, effectively reinforces the seam, instead of `the seam being a' source ofweakness in otherwise locating the seam.

In the collapsing of the closure, as the apex of the triangle I9 vmoves inward, the sides of the right triangles 20, 2|, connected respectively with the sections I 4, I'I, transmit a tilting tendency to the triangle I9 against full parallelism with the tube bottom. This tilting is slightly upward toward the central portion of the rib 25 While the sections I5 and I8 are spaced apart more than theV thickness of the sections 22, 23. As the sections 22, 23, are flattened out by the more snug abutting assembly with the section I5, the greater extent abutting portion between the trapezoids 22, 23, holds up this two-ply intermediate portion to approximate straight line continuity of the free edge portion thereof as identical with the fold line between the sections I5, I 6. 'I'his is a factor for liquid tightness and rib medial solidity at the stitched region. 'I'here is not only this straight line region 26 from one trapezoid section folded pair to the other, but abutting region 21 between the trapezoid pairs in practice eliminates gap or overlap.

What is claimed and it is desired to secure by Letters Patent is:

1. In a paper container, angularly disposed wall portions having their adjacent edges connected by an intermediate elongated portion scored to a depth suiiicient to provide a rib opposite the score and within the container, the inner surface of said rib providing a llet in the corner defined by said wall portions, and a coating of parafiin or like substance adhering to the inner faces of said wall portions and rib or fillet.

2. The method of forming a leak-proof paper container which comprises, scoring a paper blank to form a groove in one surface and a rib opposite said groove thus dening adjacent container panels or wall portions mutually connected by means of a scored portion, moving said wall panels into angular relationship about said intermediate scored portion as a hinge or axis, the panels being so moved as to tend to compress the rib and to thereby form a llet in the corner dened by said panels and within the container, securing said panels in fixed relationship, and thereafter coating the surface of the fillet and adjacent surfaces of the panels with a leak-prooff ing substance such as paramn.

HENRY T. SCOTT. 

